At first, I thought it was due to all the people who received a STEEM gift card for Christmas by steemgifts.com are now telling all of their friends and family about the awesome gift they got, who now buy STEEM themselves and tell their family and friends etc.

But clearly, it is thanks to the fact that when I added a link to my steemit blog in my description on the dating Apps that I am on. All the girls that have seen me there now obviously want to get noticed and so they are buying STEEM to make it more likely that I will notice their upvotes. But then again, the other girls also want to be on top and don't want the others to get ahead, so then they need to buy STEEM to, and so the cycle goes.

So there you go.